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Bug#656196: [2.6.39 -> 3.0 regression] kernel stalls every few days (rcu_sched_state detected stall on CPU x)



Hi,

Michael Below wrote:

> [Subject: Seems fixed in 3.4]

Please keep in mind that these appear as emails in a crowded inbox,
so the subject line can be a good place to put valuable contet.

> I upgraded the kernel to 3.4 from experimental, the stall warning
> doesn't appear anymore. At the same time, there are more "workaround"
> messages during USB startup:

Thanks!

Earlier I asked about whether idle=mwait had any effect on this bug.
Did it?

Could you bisect through the kernels at

  http://snapshot.debian.org/package/linux-2.6/

to find which is the first fixed one?  That would help a lot in
isolating what change is likely to have fixed this, so we can apply
that change to wheezy and make sure it is applied to the upstream
3.2.y tree for other distributors, too.

Hope that helps,
Jonathan


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